Psychology · Psychometrics & Measurement

Item Response Theory

A topic within Psychometrics & Measurement, itself one of 9 topics in that field and part of Psychology.

Reading on Item Response Theory

2 works

Paper1993

Comparison of Classical Test Theory and Item Response Theory and Their Applications to Test Development

Ronald K. Hambleton & Russell W. Jones

Contrasts classical test theory, where a score's meaning depends on the particular sample and items used, with item response theory, which places a person's ability and an item's difficulty on the same scale independent of which items were given.

link checked 17 Sept 2026

Psychology · Psychometrics & Measurement

FreeEntry

Book2001

The Basics of Item Response Theory

Frank B. Baker

A worked introduction to item response theory - the one, two and three-parameter logistic models - showing how item difficulty and discrimination can be estimated on the same scale as a respondent's ability, independent of which items were used.

Psychology · Psychometrics & Measurement

FreeIntermediate

Reading on Item Response Theory

Comparison of Classical Test Theory and Item Response Theory and Their Applications to Test Development

The Basics of Item Response Theory

Other topics in Psychometrics & Measurement